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53286569 = 727314897
BaseRepresentation
bin1100101101000…
…1011010101001
310201021020102122
43023101122221
5102120132234
65142041025
71214633300
oct313213251
9121236378
1053286569
1128095a96
1215a19175
13b06931b
147111437
154a2892e
hex32d16a9

53286569 has 12 divisors (see below), whose sum is σ = 62839764. Its totient is φ = 45045504.

The previous prime is 53286559. The next prime is 53286577. The reversal of 53286569 is 96568235.

It is a happy number.

53286569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41473600 + 11812969 = 6440^2 + 3437^2 .

It is not a de Polignac number, because 53286569 - 220 = 52237993 is a prime.

It is a super-2 number, since 2×532865692 = 5678916871583522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53286539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3872 + ... + 11025.

It is an arithmetic number, because the mean of its divisors is an integer number (5236647).

Almost surely, 253286569 is an apocalyptic number.

It is an amenable number.

53286569 is a deficient number, since it is larger than the sum of its proper divisors (9553195).

53286569 is a wasteful number, since it uses less digits than its factorization.

53286569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14984 (or 14977 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 53286569 is about 7299.7649962173. The cubic root of 53286569 is about 376.3043620749.

The spelling of 53286569 in words is "fifty-three million, two hundred eighty-six thousand, five hundred sixty-nine".

Divisors: 1 7 49 73 511 3577 14897 104279 729953 1087481 7612367 53286569